H2H data updated: 2026-09-14 00:00 UTC

Kim Clijsters vs Ai Sugiyama H2H: 6-3

Kim Clijsters holds a 6–3 lead over Ai Sugiyama in their WTA head-to-head. Across 9 main-draw meetings, Kim Clijsters leads 3–2 on hard courts, while they are tied 1–1 on clay. Most recently, Kim Clijsters won the 2005 US Open third round 6-1 6-4.

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Kim Clijsters
BEL Age 43 Right-Handed 174 cm / 5'9"
H2H
6 – 3
9 main-draw meetings
Ai Sugiyama
JPN Age 51 Right-Handed 163 cm / 5'4"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Kim Clijsters #4 6-1 6-4 Ai Sugiyama #33 Match data Sep 3, 2005* R32 US Open Grand Slam Hard
Kim Clijsters #14 6-1 6-2 Ai Sugiyama #33 Match data Jul 29, 2005* R16 Stanford Tier II → modern equivalent WTA 500 Hard
Kim Clijsters #2 6-3 6-2 Ai Sugiyama #14 Match data Jul 2, 2003* R16 Wimbledon Grand Slam Grass
Kim Clijsters #2 6-3 6-2 Ai Sugiyama #16 Match data May 17, 2003* SF Italian Open Tier I → modern equivalent WTA 1000 Clay
Ai Sugiyama #25 3-6 7-5 6-4 Kim Clijsters #3 Match data Mar 2, 2003* F Scottsdale Tier II → modern equivalent WTA 500 Hard
Ai Sugiyama #48 6-3 6-3 Kim Clijsters #5 Match data Aug 2, 2001* R32 San Diego Tier II → modern equivalent WTA 500 Hard
Kim Clijsters #19 6-4 4-6 6-2 Ai Sugiyama #44 Match data Mar 8, 2001 R16 Indian Wells Open Tier I → modern equivalent WTA 1000 Hard
Kim Clijsters #31 6-0 6-2 Ai Sugiyama #35 Match data Nov 2, 2000* R32 Leipzig Tier II → modern equivalent WTA 500 Carpet
Ai Sugiyama #21 6-2 3-6 6-2 Kim Clijsters #29 Match data May 31, 2000* R128 Roland Garros Grand Slam Clay

Estimated match date where the exact historical date is unavailable. Arrows show an edition's recorded category and documented modern equivalent; unresolved editions keep their recorded category. Asterisked totals include editions mapped from documented historical predecessor categories. Mapping details.

Career Comparison

Player Current Peak Pts Elo W L Win % GS 1000 including documented historical predecessor categories Finals 500 including documented historical predecessor categories 250 including documented historical predecessor categories Titles
Kim Clijsters #1,140 #1 8,895 2,299 466 128 78.5% 4 7 3 18 9 41
Ai Sugiyama #97 #8 2,400 1,951 416 366 53.2% 0 0 0 2 4 6

Career Progression by Age

Seasons are aligned by the age each player spent most of that calendar year. GS and Titles are cumulative career totals through that season.

Age Kim Clijsters Ai Sugiyama
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
16 1999 16–7 69.6% #46 1,724 0 1 1992 1–4 20.0% #184 1,477 0 0
17 2000 28–15 65.1% #18 1,913 0 3 1993 3–8 27.3% #145 1,486 0 0
18 2001 54–19 74.0% #5 2,036 0 6 1994 9–11 45.0% #72 1,556 0 0
19 2002 50–17 74.6% #4 2,146 0 10 1995 16–17 48.5% #46 1,665 0 0
20 2003 86–12 87.8% #2 2,261 0 19 1996 24–19 55.8% #28 1,751 0 0
21 2004 18–4 81.8% #22 2,246 0 21 1997 31–25 55.4% #21 1,837 0 1
22 2005 66–9 88.0% #2 2,234 1 30 1998 37–21 63.8% #18 1,862 0 3
23 2006 41–12 77.4% #5 2,165 1 33 1999 27–23 54.0% #24 1,807 0 3
24 2007 14–4 77.8% #5 2,128 1 34 2000 20–25 44.4% #32 1,679 0 3
25 — — — — — — — 2001 28–25 52.8% #30 1,718 0 3
26 2009 13–3 81.2% #18 2,140 2 35 2002 35–26 57.4% #24 1,755 0 3
27 2010 39–7 84.8% #3 2,189 3 40 2003 44–25 63.8% #10 1,915 0 5
28 2011 21–7 75.0% #13 2,054 4 41 2004 33–23 58.9% #17 1,808 0 6
29 2012 20–7 74.1% #20 2,022 4 41 2005 28–27 50.9% #29 1,741 0 6
30 — — — — — — — 2006 28–25 52.8% #26 1,743 0 6
31 — — — — — — — 2007 17–21 44.7% #38 1,633 0 6
32 — — — — — — — 2008 26–22 54.2% #31 1,713 0 6
33 — — — — — — — 2009 9–19 32.1% #97 1,627 0 6
37 2020 0–3 0.0% #1030 1,956 4 41 — — — — — — —
38 2021 0–2 0.0% #1154 1,908 4 41 — — — — — — —

Surface Results by Age

Seasons are aligned by the age each player spent most of that calendar year. Results cover completed main-draw matches. Bold green marks the higher win percentage when both players have at least 5 matches on that surface at the aligned age.

Age Kim Clijsters Ai Sugiyama
Yr HardClayGrassCarpet Yr HardClayGrassCarpet
W L M Win % W L M Win % W L M Win % W L M Win % W L M Win % W L M Win % W L M Win % W L M Win %
16 1999 6 2 8 75.0% 2 2 4 50.0% 3 1 4 75.0% 5 2 7 71.4% 1992 0 3 3 0.0% — — — — — — — — 1 1 2 50.0%
17 2000 17 9 26 65.4% 1 2 3 33.3% 2 2 4 50.0% 8 2 10 80.0% 1993 2 3 5 40.0% — — — — 0 2 2 0.0% 1 3 4 25.0%
18 2001 32 12 44 72.7% 11 5 16 68.8% 7 2 9 77.8% 4 0 4 100.0% 1994 6 7 13 46.2% — — — — 0 2 2 0.0% 3 2 5 60.0%
19 2002 37 11 48 77.1% 9 3 12 75.0% 2 2 4 50.0% 2 1 3 66.7% 1995 5 8 13 38.5% 6 4 10 60.0% 0 2 2 0.0% 5 3 8 62.5%
20 2003 57 7 64 89.1% 15 2 17 88.2% 9 1 10 90.0% 5 2 7 71.4% 1996 19 11 30 63.3% 0 3 3 0.0% 4 2 6 66.7% 1 3 4 25.0%
21 2004 13 3 16 81.3% 1 1 2 50.0% — — — — 4 0 4 100.0% 1997 19 13 32 59.4% 3 5 8 37.5% 2 2 4 50.0% 7 5 12 58.3%
22 2005 50 5 55 90.9% 8 3 11 72.7% 8 1 9 88.9% — — — — 1998 24 9 33 72.7% 6 5 11 54.5% 1 2 3 33.3% 6 5 11 54.5%
23 2006 24 8 32 75.0% 10 2 12 83.3% 7 2 9 77.8% — — — — 1999 18 11 29 62.1% 3 4 7 42.9% 2 2 4 50.0% 4 6 10 40.0%
24 2007 14 3 17 82.4% 0 1 1 0.0% — — — — — — — — 2000 11 13 24 45.8% 6 5 11 54.5% 1 2 3 33.3% 2 5 7 28.6%
25 — — — — — — — — — — — — — — — — — 2001 20 14 34 58.8% 4 6 10 40.0% 2 3 5 40.0% 2 2 4 50.0%
26 2009 13 3 16 81.3% — — — — — — — — — — — — 2002 26 16 42 61.9% 4 6 10 40.0% 5 3 8 62.5% 0 1 1 0.0%
27 2010 32 4 36 88.9% 1 1 2 50.0% 6 2 8 75.0% — — — — 2003 29 16 45 64.4% 7 4 11 63.6% 4 2 6 66.7% 4 3 7 57.1%
28 2011 16 4 20 80.0% 1 1 2 50.0% 1 1 2 50.0% 3 1 4 75.0% 2004 22 14 36 61.1% 5 5 10 50.0% 5 2 7 71.4% 1 2 3 33.3%
29 2012 11 4 15 73.3% — — — — 9 3 12 75.0% — — — — 2005 20 17 37 54.1% 7 6 13 53.8% 1 3 4 25.0% 0 1 1 0.0%
30 — — — — — — — — — — — — — — — — — 2006 22 18 40 55.0% 1 3 4 25.0% 5 3 8 62.5% 0 1 1 0.0%
31 — — — — — — — — — — — — — — — — — 2007 10 15 25 40.0% 3 2 5 60.0% 2 3 5 40.0% 2 1 3 66.7%
32 — — — — — — — — — — — — — — — — — 2008 20 15 35 57.1% 4 5 9 44.4% 2 2 4 50.0% — — — —
33 — — — — — — — — — — — — — — — — — 2009 7 13 20 35.0% 0 4 4 0.0% 2 2 4 50.0% — — — —
37 2020 0 3 3 0.0% — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
38 2021 0 2 2 0.0% — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
Career — 322 80 402 80.1% 59 23 82 72.0% 54 17 71 76.1% 31 8 39 79.5% — 280 216 496 56.5% 59 67 126 46.8% 38 39 77 49.4% 39 44 83 47.0%

Performance Progression by Age

Seasons are aligned by the age each player spent most of that calendar year. Detailed serve and return statistics available for 201/388 of Kim Clijsters's and 170/347 of Ai Sugiyama's main draw matches. Sample is shown as matches with detailed serve and return statistics / total main draw matches. Bold green marks the stronger value when both stat samples contain at least 5 matches; lower is better for DFs/M.

Age Kim Clijsters Ai Sugiyama
Yr Sample Aces/M DFs/M 1st Sv% 1st Pts% 2nd Pts% BP Saved% BP Conv% Svc Pts% Ret Pts% Yr Sample Aces/M DFs/M 1st Sv% 1st Pts% 2nd Pts% BP Saved% BP Conv% Svc Pts% Ret Pts%
20 2003 20/98 2.1 2.5 66.4% 70.7% 49.9% 61.6% 57.5% 64.3% 52.7% — —/— — — — — — — — — —
21 2004 7/22 1.0 4.7 61.9% 68.5% 52.6% 58.8% 62.8% 62.3% 53.8% — —/— — — — — — — — — —
22 2005 21/75 2.8 4.3 62.2% 71.7% 47.9% 48.4% 54.4% 62.6% 51.1% — —/— — — — — — — — — —
23 2006 32/53 2.0 3.3 64.2% 67.8% 47.9% 60.1% 49.3% 60.7% 49.1% — —/— — — — — — — — — —
24 2007 13/18 1.8 4.6 60.4% 68.1% 53.6% 46.8% 48.2% 62.7% 49.3% — —/— — — — — — — — — —
26 2009 16/16 2.8 4.1 63.0% 69.2% 54.9% 62.5% 54.3% 63.7% 48.5% — —/— — — — — — — — — —
27 2010 42/46 2.9 4.5 62.0% 69.3% 51.6% 61.4% 53.0% 62.6% 50.3% 2003 12/69 0.8 5.8 60.8% 64.3% 45.1% 53.4% 43.3% 56.6% 48.3%
28 2011 27/28 2.0 5.0 64.0% 67.6% 46.2% 56.0% 52.0% 60.1% 50.0% 2004 11/56 1.2 4.5 60.8% 64.1% 45.3% 64.6% 47.8% 56.5% 48.7%
29 2012 18/27 2.5 3.4 66.3% 71.8% 49.0% 57.8% 43.7% 64.1% 47.1% 2005 7/55 1.4 5.0 65.8% 58.7% 40.3% 46.6% 51.4% 53.1% 42.6%
30 — —/— — — — — — — — — — 2006 37/53 1.3 3.7 67.8% 60.4% 43.2% 56.7% 47.8% 54.8% 44.7%
31 — —/— — — — — — — — — — 2007 36/38 1.2 5.6 62.8% 58.7% 42.4% 52.3% 50.3% 52.7% 47.1%
32 — —/— — — — — — — — — — 2008 41/48 0.9 5.3 63.3% 60.9% 43.5% 52.1% 43.6% 54.4% 45.4%
33 — —/— — — — — — — — — — 2009 26/28 0.8 4.9 65.4% 58.3% 42.7% 43.8% 45.1% 52.8% 41.1%
37 2020 3/3 5.3 6.7 66.9% 62.7% 44.2% 61.9% 30.0% 56.2% 32.9% — —/— — — — — — — — — —
38 2021 2/2 2.0 9.0 63.1% 58.9% 37.9% 49.2% 41.7% 51.0% 42.3% — —/— — — — — — — — — —
Career — 201/594 2.4 4.1 63.5% 69.1% 49.7% 57.7% 51.7% 62.1% 49.7% — 170/782 1.1 4.9 64.3% 60.3% 43.2% 52.6% 46.7% 54.1% 45.2%

Advanced Statistics Comparison by Age

Seasons are aligned by the age each player spent most of that calendar year. Metrics use eligible main-draw results; point statistics use matches with detailed data. Bold green marks the stronger value when both underlying samples are sufficient. Lower is better for Schedule because a negative value means a tougher schedule. Career Schedule is normalized per 100 matches.

Age Kim Clijsters Ai Sugiyama
Yr Elo P+ Serve+ Return+ PD TPW% Hard Elo Clay Elo Grass Elo Set Win % Set Margin Dec. Set Tiebreak Pressure+ Schedule Yr Elo P+ Serve+ Return+ PD TPW% Hard Elo Clay Elo Grass Elo Set Win % Set Margin Dec. Set Tiebreak Pressure+ Schedule
16 1999 1725 145.5 — — — — -30 -155 -56 67.3% +1.53 2–3 (40%) 0–2 — -0.43 1992 1478 102.6 — — — — +34 — — 30.8% -1.31 1–2 (33%) 0–2 — +0.31
17 2000 1913 156.2 — — — — +15 -370 -218 60.2% +0.62 11–8 (58%) 8–2 (80%) 107.4 -1.40 1993 1487 125.5 — — — — +44 — — 37.0% -0.89 1–4 (20%) — — -0.26
18 2001 2036 161.2 — — — — +15 -316 -171 69.3% +1.43 15–7 (68%) 7–2 (78%) 111.5 -0.33 1994 1557 120.7 — — — — +41 — — 47.8% +0.13 4–4 (50%) 1–2 (33%) — +1.49
19 2002 2146 168.0 — — — — +28 -315 -318 69.1% +1.50 12–9 (57%) 5–6 (45%) 100.6 -1.80 1995 1665 135.9 — — — — -9 -11 — 49.3% +0.23 4–7 (36%) 3–0 (100%) 101.9 +0.28
20 2003 2262 176.5 +7.01 +7.29 1.478 58.4% +19 -206 -246 83.9% +2.65 12–7 (63%) 5–1 (83%) 104.0 -2.52 1996 1751 143.7 — — — — -8 -156 -152 54.3% +0.29 5–5 (50%) 3–3 (50%) 99.1 +0.30
21 2004 2247 155.4 +3.47 +3.81 1.426 57.9% +5 — — 90.2% +2.95 2–1 (67%) 4–0 (100%) 102.2 -0.05 1997 1837 150.1 — — — — +27 -234 -204 51.5% 0.00 14–8 (64%) 11–8 (58%) 106.9 -1.35
22 2005 2235 173.2 +5.59 +5.46 1.367 56.6% +51 -182 -131 85.4% +2.89 7–5 (58%) 4–5 (44%) 97.3 -0.64 1998 1862 153.1 — — — — +57 -206 -239 60.3% +0.68 12–5 (71%) 9–4 (69%) 107.7 +0.41
23 2006 2166 165.9 +5.11 +5.07 1.249 54.5% +47 -71 -23 75.2% +1.82 9–4 (69%) 6–2 (75%) 101.0 -2.33 1999 1808 151.0 — — — — +46 -168 -203 53.0% +0.21 8–7 (53%) 4–4 (50%) 99.6 -1.12
24 2007 2128 161.0 +4.97 +3.93 1.322 55.5% +66 — — 70.7% +1.95 4–1 (80%) 1–2 (33%) 99.6 +0.04 2000 1679 137.5 — — — — +24 +5 -92 46.1% -0.54 5–7 (42%) 7–5 (58%) 99.7 -0.80
25 — — — — — — — — — — — — — — — — 2001 1719 138.7 — — — — +19 -57 -121 53.7% +0.17 10–11 (48%) 6–2 (75%) 102.9 -0.48
26 2009 2141 159.8 +6.04 +5.04 1.334 55.9% +56 — — 73.7% +1.87 4–2 (67%) 0–1 — -1.42 2002 1755 141.6 — — — — +15 -109 -67 56.1% +0.32 9–8 (53%) 8–6 (57%) 100.6 -0.40
27 2010 2190 168.6 +6.21 +7.25 1.348 56.4% +54 — -96 76.2% +2.15 11–4 (73%) 6–4 (60%) 103.3 -2.07 2003 1915 154.1 +1.48 +3.41 1.113 52.2% -8 -157 -164 58.3% +0.63 22–10 (69%) 7–7 (50%) 105.4 +1.81
28 2011 2055 151.4 +3.98 +4.33 1.252 54.8% +97 — — 72.9% +1.73 6–1 (86%) 6–2 (75%) 101.4 +0.06 2004 1808 144.1 +0.61 +2.40 1.121 52.5% -4 -67 +28 57.5% +0.58 8–7 (53%) 4–8 (33%) 97.4 +2.38
29 2012 2023 145.0 +6.00 +3.05 1.314 55.0% +75 — +54 73.6% +1.85 4–1 (80%) 3–4 (43%) 99.1 -0.72 2005 1742 133.4 -1.10 -0.52 0.908 47.7% +17 -41 -12 51.1% +0.11 11–16 (41%) 6–4 (60%) 94.4 +2.95
30 — — — — — — — — — — — — — — — — 2006 1744 138.5 -0.78 +0.79 0.988 49.8% +9 -91 +46 50.8% +0.14 10–8 (56%) 2–14 (13%) 94.4 +0.98
31 — — — — — — — — — — — — — — — — 2007 1633 125.5 -2.23 +2.56 0.996 50.0% -7 +43 +130 47.3% -0.13 8–9 (47%) 5–4 (56%) 98.7 +1.74
32 — — — — — — — — — — — — — — — — 2008 1713 136.4 -0.29 +1.82 0.995 49.6% +26 -71 +32 48.5% -0.19 8–5 (62%) 5–5 (50%) 105.2 +0.32
33 — — — — — — — — — — — — — — — — 2009 1627 135.9 -1.68 -1.34 0.871 46.9% +43 -37 +108 35.6% -0.86 2–5 (29%) 4–3 (57%) 100.4 -0.98
37 2020 1956 116.1 +0.27 +0.94 0.751 45.5% +63 — — 14.3% -2.00 0–1 0–1 — -0.43 — — — — — — — — — — — — — — — —
38 2021 1908 106.1 +0.32 -1.68 0.864 46.7% — — — 33.3% -1.50 0–2 — — -0.16 — — — — — — — — — — — — — — — —
Career — 2299 172.4 +5.39 +5.26 1.313 55.7% +36 -226 -114 74.6% +1.92 99–56 (64%) 55–34 (62%) 106.7 -2.42 — 1952 148.1 -0.87 +1.32 0.986 49.6% +18 -90 -55 52.1% +0.15 142–128 (53%) 85–81 (51%) 103.0 +0.97

Career Rivalries

Each player's five most-played main-draw opponents. The current matchup is highlighted when it appears in a player's top five.